Use InQuit OST to PST Converter because you will get 100% accurate results of the data recovery and data conversion. InQuit OST to PST Converter is also split the large sized PST files into small bits. You can also use this software of various different platforms like Win 95, Win NT, Win 98, Win ME, Win XP, Win Vista, Win 7, Win 8, Win 8.1, and Win 10 (32bit & 64bit) and it can also work on Live Exchange Server 5.0, 5.5, 2000, 2003, 2007, 2010, 2013, 2016.
You can convert your data into various formats. Some of them are PST, EML, MSG, vCal, vCard etc. You can download the demo version of this tool and you can convert 30 emails for free.
Read More Info: https://www.inquitsoftware.com/en/ost-to-pst-converter.html